The very first Royal Oak types have been equipped Using the calibre 2121 movement, which was according to the calibre 2120 designed by Audemars Piguet in 1967, the entire world’s thinnest self-winding motion with the era with date indication, and an In general height of 3.05mm. The calibre 2121 was https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/